Phase and Group Delays This expression indicates a time delay. known as phase delay at o=o. given by 0(0o p(wo O Now consider the case when the input Signal contains many sinusoidal components with different frequencies that are not harmonically related Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 3 Phase and Group Delays • This expression indicates a time delay, known as phase delay, at given by • Now consider the case when the input signal contains many sinusoidal components with different frequencies that are not harmonically related = o o o p o      = − ( ) ( )